RT Journal Article
T1 Cyclic olefin polymer as a novel membrane material for membrane distillation applications
A1 Sabzekar, M.
A1 Chenar, M. Pourafshari;, M. Pourafshari
A1 Maghsoud, Z.
A1 Mostaghisi, O.
A1 García Payo, María del Carmen
A1 Khayet Souhaimi, Mohamed
AB A first attempt was made to prepare cyclic olefin polymer/copolymer (COP/COC) flat-sheet porous membranes by the well-known non-solvent induced phase separation method. In this study, two solvents (chloroform and 1,2,4-trichlorobenzene), different additives (polyvinylpyrrolidone, PVP, polyethylene glycol, PEG400, polyethylene oxide, PEO, and Sorbitan monooleate, Span 80) and coagulants (acetone and 70/30 wt% acetone/water mixture) were employed. The prepared membranes were characterized in terms of the thickness (70-85 mu m), porosity (-50-80%), liquid entry pressure (1.16-4.55 bar), water contact angle (similar to 86 degrees - 111 degrees), mean pore size (158-265 nm), mechanical properties (tensile strength: 0.74-5.51 MPa, elongation at break: 3.34%-7.94% and Young's modulus: 29-237 MPa), morphological and topographical characteristics. Short-term direct contact membrane distillation (DCMD) tests showed maximum permeate fluxes of 20 kg m(-2) h(-1) and 15 kg m(-2) h(-1) when using as feed distilled water and 30 g/L sodium chloride aqueous solution, respectively, with a high salt separation factor (99.99%). Long-term DCMD tests of some selected membranes carried out during 24-50 h showed that the membranes prepared with PEG additive exhibited more stable DCMD performance. In general, it was proved that COP can be successfully used as a novel polymer candidate in membrane distillation (MD) applications.
PB Elsevier B. V.
SN 0376-7388
YR 2021
FD 2021-03-01
LK https://hdl.handle.net/20.500.14352/8277
UL https://hdl.handle.net/20.500.14352/8277
LA eng
NO The authors gratefully acknowledge the financial support of the Spanish Ministry of Economy and Competitiveness through its project CTM2015-65348-C2-2-R, the Spanish Ministry of Science, Innovation and Universities through its project RTI2018-096042-B-C22 and also Sarkhoon and Qeshm Gas Refinery Company of Iran (No. 266270).
NO Ministerio de Economía y Competitividad (MINECO)
NO Ministerio de Ciencia e Innovación (MICINN)
NO Sarkhoon and Qeshm Gas Refinery Company of Iran
DS Docta Complutense
RD 28 abr 2024